“We confit the leg and serve that with roasted fig and butternut chips, whatever, that's a different prep. But the breast we sear off, right, and the potatoes we slice thick and roast with a little thyme. Crisp up the duck skin, let the fat render, and a minute or two before you take it off the flame to rest, you brush the meat side with some mustard thinned with a little olive oil. You let the breast rest on the potatoes, mustard side down, for maybe two minutes before serving. The juices mingle with the mustard and the thyme and the olive oil on the potatoes, and boom- dish has a sauce by the time you serve it. It's a self-saucing dish.”
Book:Bread and Butter